38388400885255 has 4 divisors (see below), whose sum is σ = 46066081062312. Its totient is φ = 30710720708200.

The previous prime is 38388400885223. The next prime is 38388400885273. The reversal of 38388400885255 is 55258800488383.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 38388400885255 - 2⁵ = 38388400885223 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3838840088521 + ... + 3838840088530.

It is an arithmetic number, because the mean of its divisors is an integer number (11516520265578).

Almost surely, 2^{38388400885255} is an apocalyptic number.

38388400885255 is a deficient number, since it is larger than the sum of its proper divisors (7677680177057).

38388400885255 is an equidigital number, since it uses as much as digits as its factorization.

38388400885255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7677680177056.

The product of its (nonzero) digits is 294912000, while the sum is 67.

The spelling of 38388400885255 in words is "thirty-eight trillion, three hundred eighty-eight billion, four hundred million, eight hundred eighty-five thousand, two hundred fifty-five".